html {
  font-size: 16px;
}

body {
  overflow-x: hidden;
}

header {
  z-index: 1;
  color: rgba(255, 255, 255, 0.75);
  background-color: #24292e;
}

header .buttons {
  float: right;
  line-height: 3rem;
}

header a {
  color: lightgray;
}

header a {
  color: lightgray;
}

header h1 {
  font-size: 1.3rem;
  float: left;
  line-height: 3rem;
}

header nav {
  float: left;
  margin-left: 4.5rem;
  line-height: 3rem;
}

header nav ul {
  margin: 0;
  padding: 0;
}

header nav ul li {
  list-style: none;
  float: left;
}

header nav ul li:not(:first-child) {
  margin-left: 2rem;
}

section.logo {
  margin: 3em auto;
  text-align: center;
}

section.logo img {
  height: 15rem;
}

section.logo.not-found img {
  filter: grayscale(99%);
  opacity: 0.5;
}

.background-logo {
  position: absolute;
  right: 0;
  top: 75%;
  transform: translateX(20%) translateY(-50%);
  filter: grayscale(90%);
  opacity: 0.05;
}

.background-logo img {
  height: 35rem;
}

footer {
  text-align: center;
  margin-top: 4rem;
  font-size: 0.9em;
  margin-bottom: 2.5rem;
}

footer a {
  font-weight: bold;
}

/* footer a:before {
  content: '@';
} */

footer a:hover {
  text-decoration: none;
  opacity: 0.9;
}

main {
  margin-top: 3rem;
}

.quote {
  padding: 5px;
  padding-top: 0.2em;
  padding-bottom: 0.2em;
  margin: 0;
  font-size: 85%;
  background-color: rgba(0, 0, 0, 0.04);
  border-radius: 3px;
  font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  font-size: 1em;
}

.margin-top {
  margin-top: 2.5rem;
}

form.contact-us {
  margin-top: 2.5rem;
}

.hidden {
  display: none;
}

@media only screen and (max-width: 500px) {
  header nav {
    display: none;
  }

  .container {
    width: 100%;
    padding: 0px 10px;
  }

  section.logo img {
    width: 80%;
    height: 80%;
  }

  main:not(.no-center) {
    text-align: center;
  }

  .background-logo {
    display: none;
  }
}

.trusted-by {
  text-align: center;
  margin: 50px auto;
}

.trusted-by img {
  height: 6rem;
  filter: grayscale(80%);
  margin: 0 20px;
}

.main-buttons {
  margin-top: 30px;
  text-align: center;
}
